<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>非父子组件间传值（Bus/总线/发布订阅模式/观察者模式）</title>
    <script src="https://cdn.jsdelivr.net/npm/vue/dist/vue.js"></script>
</head>
<body>
    <div id="app">
        <child content="Dell"></child>
        <child content="Lee"></child>
    </div>

    <script>
        Vue.prototype.bus = new Vue({

        })

        Vue.component('child', {
            data: function() {
                return {
                    selfContent: this.content
                }
            },
            props: {
                content: {
                    type: String
                }
            },
            template: '<div @click="handleClick">{{selfContent}}</div>',
            methods: {
                handleClick: function() {
                    this.bus.$emit('change', this.selfContent);
                }
            },
            mounted: function() {
                var this_ = this;
                this.bus.$on('change', function(msg) {
                    this_.selfContent = msg;
                })
            }
        })
        var vm = new Vue({
            el: '#app',

        })
    </script>
</body>
</html>